MySQL query no results - php

Question

I want echo my DB results from Session but i get no results or errors:
$_SESSION['username'];
$link = mysqli_connect("$myHost", "$myUser", "$myPass", "$myDB");
// Check connection
if($link === false){
die("ERROR: Could not connect. " . mysqli_connect_error());
}
$username = mysqli_real_escape_string($link, $_SESSION['username']);
$sql = "SELECT * FROM users where username = $username";
$result = mysqli_query($link, $sql);
echo $result;
Anyone know why not? Session works.
Thanks

Answer 1

You should change your query, like this:
$sql = "SELECT user FROM yourtablename WHERE username = $username"
Where "user" is what you want to SELECT if you want to select all data, you can use "*", yourtablename is table name of table you want to select.
After your edits, your code should look like
$_SESSION['username'];
$link = mysqli_connect("$myHost", "$myUser", "$myPass", "$myDB");
// Check connection
if($link === false){
die("ERROR: Could not connect. " . mysqli_connect_error());
}
$username = mysqli_real_escape_string($link, $_SESSION['username']);
$sql = "SELECT * FROM users where username = $username";
if ($result = $link->query($sql)) {
while ($row = $result->fetch_row()) {
var_dump($row);
}
$result->close();
}
More info here
Notice: mysqli_real_escape_string it's not very security. A better option to protect against SQL injections is using prepared statements, more info here